Unless otherwise stated, closures start at 9pm and finish at 5am. Traffic management may be in place before the advertised closure times for the mainline. Unless otherwise stated, closures start at 9pm and finish at 5am. Traffic management may be in place before the advertised closure times for the mainline. NORTHERN MOTORWAY (SH1)Southbound lanes between Silverdale off-ramp and Oteha Valley Road on-ramp, 17 JulySilverdale southbound on-ramp, 17 JulySouthbound lanes between Oteha Valley Road off-ramp and Constellation Drive on-ramp, 16 July (approx. 10:00pm to 5:00am)Oteha Valley Road southbound on-ramp, 16 JulyGreville Road southbound on-ramp, 16 JulySH1 southbound to SH18 westbound Link, 16 July (approx. 10:00pm to 5:00am)Southbound lanes between Northcote Road off-ramp and Onewa Road on-ramp, 15 July (approx. 10:00pm to 5:00am)Northcote Road southbound on-ramp, 15 JulyEsmonde Road southbound on-ramp, 15 JulyShelly Beach Road southbound off-ramp, 13-17 July SOUTHERN MOTORWAY (SH1)Southbound lanes between Greenlane off-ramp and Mt Wellington Highway on-ramp, 13-14 July (approx. 10:30pm to 5:00am)Greenlane southbound on-ramp, 13-14 July (approx. 10:30pm to 5:00am)Tecoma Street southbound on-ramp, 13-14 JulyEllerslie-Panmure Highway southbound on-ramp, 13-14 JulyMt Wellington Highway southbound on-ramp, 15-17 JulyMt Wellington Highway southbound on-ramp, 17 July (approx. 10:00pm to 5:00am)Southbound lanes between Papakura off-ramp and Ramarama on-ramp, 13-17 JulyPapakura (Loop) southbound on-ramp, 13-17 JulyPapakura (Diamond) southbound on-ramp, 13-17 JulyDrury/SH22 southbound on-ramp, 13-17 JulyDrury/SH22 northbound on-ramp, 13-17 JulyDrury/SH22 northbound off-ramp, 13-14 JulyBombay southbound off-ramp, 13-17 JulyPokeno northbound off-ramp, 13-15 JulySouthbound lanes between Hampton Downs off-ramp and Hampton Downs on-ramp, 15-17 JulyNorthbound lanes between Hampton Downs off-ramp and Hampton Downs on-ramp, 15-17 JulyDragway Road northbound off-ramp, 15-17 JulyNORTHWESTERN MOTORWAY (SH16)Southbound lanes between Waimauku roundabout and Trigg Rd, 13-17 July (approx. 8:00pm to 5:00am)Northbound lanes between Trigg Rd and Waimauku roundabout, 13-17 July (approx. 8:00pm to 5:00am) UPPER HARBOUR MOTORWAY (SH18)Westbound lanes between Paul Matthews Road off-ramp and Albany Highway on-ramp, 16 July (approx. 10:00pm to 5:00am)Paul Matthews Road westbound on-ramp, 16 JulySTATE HIGHWAY 2 (SH2)SH2 westbound to SH1 northbound, 16-17 July